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October 11, 2005 <br /> NOA Project Number: E05111B <br /> Table 2. <br /> Vicinity Septic System Repair Permit Summary <br /> Address,Date Tank Lines, Length, Pits Comments <br /> Capacity 2 <br /> 14715 East Wildwood Road --- 40'leach lines and 33"in Repair/addition made to a �) <br /> 12-15-76 diameter and 25'depth residential system <br /> seepage pits added <br /> 14629 Wildwood Road --- One 40'leach line and 36"in Repair/addition to a residential <br /> 11-18-93 diameter and 25'depth system <br /> seepage pit added <br /> All of the repair permits found in the vicinity were for the addition of leach lines and seepage pits. <br /> 3.7 Expected On-Site Maximum Septic Tank Usage <br /> One primary residence and a secondary dwelling will be the maximum expected septic tank usage 3 �� <br /> for each lot on the subject property. Septic system design should be based on the On-Site Wastewater <br /> Disposal Standards or other engineering recommendations. <br /> 4.0 GROUND WATER INFORMATION <br /> 4.1 Ground Water Depth and Gradient <br /> The San Joaquin County Flood Control and Water Conservation District (1998 and 1999) ground <br /> water depth and elevation maps were reviewed to determine the ground water levels near the Site. <br /> The Fall 1998 and Spring 1999 maps are the most current official maps available from the County. 1J <br /> According to these maps (Plates 3-6),ground water lies between 70 and 90 feet below ground <br /> surface and flows at a gradient of about 10 feet per mile to the north-northeast in the vicinity of the <br /> Site. /�, )�rU1•S) <br /> No ground water was encountered by the staff of Neil O.Anderson&Associates, Inc. during the l <br /> drilling of 27 percolation test holes to a depth of approximately 3.5 feet and six holes to a depth of <br /> 25 feet from August 25,2005 until September 2, 2005. <br /> 4 <br />